2021
The Utility of a Novel Definition of Health Care Regions in the United States in the Era of COVID-19: A Validation of the Pittsburgh Atlas Using Pneumonia Admissions
Dalton MK, Miller AL, Bergmark RW, Semco R, Zogg CK, Goralnick E, Jarman MP. The Utility of a Novel Definition of Health Care Regions in the United States in the Era of COVID-19: A Validation of the Pittsburgh Atlas Using Pneumonia Admissions. Annals Of Emergency Medicine 2021, 79: 518-526. PMID: 34952728, PMCID: PMC8612818, DOI: 10.1016/j.annemergmed.2021.11.017.Peer-Reviewed Original ResearchConceptsHealth care regionAcute medical conditionsState Inpatient DatabasesCare regionConcordant carePneumonia admissionsMedical conditionsQuality's State Inpatient DatabasesDiagnosis of sepsisRace/ethnicityInpatient DatabaseSecondary diagnosisInsurance statusPrimary diagnosisInclusion criteriaHospital regionReferral regionsEmergency careLevels of severityConcordance rateLogistic regressionDartmouth AtlasHealthcare ResearchCareHealth careReassessing the July Effect: 30 Years of Evidence Show No Difference in Outcomes
Zogg CK, Metcalfe D, Sokas CM, Dalton MK, Hirji SA, Davis KA, Haider AH, Cooper Z, Lichtman JH. Reassessing the July Effect: 30 Years of Evidence Show No Difference in Outcomes. Annals Of Surgery 2021, 277: e204-e211. PMID: 33914485, PMCID: PMC8384940, DOI: 10.1097/sla.0000000000004805.Peer-Reviewed Original ResearchConceptsJuly effectMajor morbidityPatient outcomesMajor adverse outcomesNationwide Readmissions DatabaseAdverse patient outcomesSystem-level factorsUS patientsAdverse outcomesSurgical conditionsInclusion criteriaPaucity of studiesReadmissionPatient encountersSystematic reviewMorbidityOutcomesNegative resultsMortalityYears of evidenceTotalYearsEvidencePatientsAdmission
2020
Benchmarking the value of care: Variability in hospital costs for common operations and its association with procedure volume.
Zogg CK, Bernard AC, Hirji SA, Minei JP, Staudenmayer KL, Davis KA. Benchmarking the value of care: Variability in hospital costs for common operations and its association with procedure volume. Journal Of Trauma And Acute Care Surgery 2020, 88: 619-628. PMID: 32039972, PMCID: PMC7802807, DOI: 10.1097/ta.0000000000002611.Peer-Reviewed Original ResearchConceptsLaparoscopic appendectomyLaparoscopic cholecystectomyHospital costsMeans of USMedian costProcedure volumeEmergency general surgeryTotal hospital costsMedian hospital costsNational Inpatient SampleAdults 18 yearsNational cost savingsAnnual procedure volumeValue of careHospital complicationsIndex hospitalHealth care valuePatient characteristicsAdverse outcomesInpatient SampleInclusion criteriaGeneral surgeryHospitalLevel IIICommon operation
2016
Hospital case volume and outcomes for proximal femoral fractures in the USA: an observational study
Metcalfe D, Salim A, Olufajo O, Gabbe B, Zogg C, Harris MB, Perry DC, Costa ML. Hospital case volume and outcomes for proximal femoral fractures in the USA: an observational study. BMJ Open 2016, 6: e010743. PMID: 27056592, PMCID: PMC4838676, DOI: 10.1136/bmjopen-2015-010743.Peer-Reviewed Original ResearchConceptsHigh-volume hospitalsHip fractureObservational studyIsolated hip fractureRate of pneumoniaHip fracture careHospital case volumeLow-volume hospitalsProximal femoral fracturesLength of stayPatient safety imperativeHospital mortalityVenous thromboembolismSecondary outcomesFracture careClinical outcomesFemoral fracturesAcute hospitalsPatient outcomesInclusion criteriaPressure ulcersCase volumeHospitalOlder adultsOutcomesAssociation between Insurance Status and Hospital Length of Stay following Trauma
Englum BR, Hui X, Zogg CK, Chaudhary MA, Villegas C, Bolorunduro OB, Stevens KA, Haut ER, Cornwell EE, Efron DT, Haider AH. Association between Insurance Status and Hospital Length of Stay following Trauma. The American Surgeon 2016, 82: 281-288. PMID: 27099067, PMCID: PMC5142530, DOI: 10.1177/000313481608200324.Peer-Reviewed Original ResearchConceptsInsurance statusHospital lengthTrauma patientsUninsured patientsInjury severityNational Trauma Data BankAcute trauma patientsShorter hospital stayTrauma Data BankUninsured trauma patientsRisk-adjusted LOSMultivariable regression modelsQuality of careHealth care systemHospital LOSHospital stayDischarge dispositionClinical factorsNonclinical factorsTrauma populationSignificant confoundersBaseline differencesInclusion criteriaPatient's abilityClinical care
2015
Morbidity or mortality? Variations in trauma centres in the rescue of older injured patients
Zafar SN, Shah AA, Zogg CK, Hashmi ZG, Greene WR, Haut ER, Cornwell EE, Haider AH. Morbidity or mortality? Variations in trauma centres in the rescue of older injured patients. Injury 2015, 47: 1091-1097. PMID: 26724172, DOI: 10.1016/j.injury.2015.11.044.Peer-Reviewed Original ResearchMeSH KeywordsAcute Kidney InjuryAgedAged, 80 and overComorbidityDatabases, FactualFailure to Rescue, Health CareFemaleGeriatric AssessmentHospital MortalityHumansInjury Severity ScoreLength of StayMaleMedicaidPneumoniaPostoperative ComplicationsRespiratory Distress SyndromeRisk AssessmentTrauma CentersUnited StatesWounds and InjuriesConceptsOlder trauma patientsMajor complicationsTrauma centerOld traumaRisk-adjusted ratesOlder patientsTrauma patientsNational Trauma Data BankFacility-level covariatesRisk-adjusted incidenceTrauma Data BankProcess of careType of injuryLogistic regression analysisPatient demographicsGeriatric traumaComorbid conditionsGeriatric patientsHigher proportionSerious complicationsInclusion criteriaInjury severityPatientsRescue ratesVital signsThe hazards of off-road motor sports: Are four wheels better than two?
Villegas CV, Bowman SM, Zogg CK, Scott VK, Haut ER, Stevens KA, Efron DT, Haider AH. The hazards of off-road motor sports: Are four wheels better than two? Injury 2015, 47: 178-183. PMID: 26319205, DOI: 10.1016/j.injury.2015.08.001.Peer-Reviewed Original ResearchConceptsHigher risk-adjusted oddsRisk-adjusted oddsATV patientsIntensive care unit admissionNational Trauma Data BankCrash victimsCare unit admissionInjury prevention planningUS National Trauma Data BankTrauma Data BankRelative safety profileUnit admissionAbdominal injuriesRetrospective reviewAnatomic injuryInjury characteristicsSevere headAnatomic distributionSafety profileTrauma outcomesInclusion criteriaPatientsSevere injuriesLogistic regressionInjuryInfluence of body mass index on outcomes after major resection for cancer
Zogg CK, Mungo B, Lidor AO, Stem M, Diaz A, Haider AH, Molena D. Influence of body mass index on outcomes after major resection for cancer. Surgery 2015, 158: 472-485. PMID: 26008961, DOI: 10.1016/j.surg.2015.02.023.Peer-Reviewed Original ResearchConceptsBody mass indexNormal body mass indexMajor resectionObese patientsMass indexWorse outcomesOdds of morbidityMorbidly obese patientsRisk-adjusted outcomesDuration of stayWorld Health OrganizationBMI cohortsObese IIObese IOverall morbidityPerioperative riskUnderweight patientsPancreatectomy patientsLung surgeryACS-NSQIPOperative timeCancer patientsEvidence-based assessmentOncologic standardsInclusion criteria